Problem 1 (40 points) The sequence of operation to implement the process illustrated in Figure P1 is to be as follows: ⚫ Start and Stop pushbuttons are used to start and stop the process. ⚫ When the Start button is pressed, solenoid A energizes to start filling the tank. When the tank is full, the full level sensor switch closes. • Solenoid A is deenergized. • Agitate motor starts automatically and . runs for 30 seconds to mix the liquid. • When the agitate motor stops, solenoid B is energized to empty the tank. • When the tank is completely empty, the empty sensor switch closes to deenergize solenoid B. SOL A Empty sensor switch SOL B a) Construct the ladder diagram (LD) for the operation. b) Construct the sequential flowchart (SFC) for the operation Figure P1 Motor Full sensor switch Start/stop control station